Auxiliary cranking unit for internal combustion engines



A. MOHAMED 3,148,549

AUXILIARY CRANKING UNIT FOR INTERNAL COMBUSTION ENGINES Sept. 15, 1964 7 Sheets-Sheet 1 Filed June 5', 1962 'INVENTOR. Ayn/s0 Mam/v50 BYE W Anna/76.

IIIL QM Sept. 15, 1964 A. MOHAMED AUXILIARY CRANKING UNIT FOR INTERNAL COMBUSTION ENGINES Filed June 5, 1962 7 Sheets-Sheet 2 I VENTOR. A/IMfD WWI/W50 WQ 9 M Q w H 83 wk A v filu vm vw INN ww m A. MOHAMED Sept. 15, 1964 AUXILIARY CRANKING UNIT FOR INTERNAL COMBUSTION ENGINES Filed June 5, 1962 7 Sheets-Sheet 3 INVENTOR. Amt/:0 'A/W/AMED BY Mmzwrs.

Sept. 15, 1964 A. MOHAMED 3,143,549

AUXILIARY CRANKING UNIT FOR INTERNAL COMBUSTION ENGINES Filed June 5, 1962 "(Sheets-Sheet 4 1 T ..=& l j #62 INVENTOR.

AHMM Mam/v50 Anne/(15x5.

Sept. 15, 1964 A. MOHAMED 3,148,549

AUXILIARY CRANKING UNIT FOR INTERNAL COMBUSTION ENGINES Filed June 5', 1962 '7 Shets-Sheet 5 9 9 W i Q m? 1 a mm m INVENTOR. 44/1450 Mum/v50 BY M M na/5Y5.

A. MOHAMED Sept. 15, 1964 AUXILIARY CRANKING UNIT FOR INTERNAL COMBUSTION ENGINES Filed June 5, 1962 7 Sheets-Sheet e INVENTOR.

Sept. 15, 1964 A. MOHAMED 3,143,549

AUXILIARY CRANKING UNIT FOR INTERNAL COMBUSTION ENGINES Filed June 5, 1962 7 Sheets-Sheet 7 1 NVEN TOR. Aw Moan/11:0

United States Patent 3,148,549 AUXILIARY CRANIHNG UNIT FOR INTERNAL CQMEUSTION ENGINES Ahmed Mohamed, 512i) Cahrillo Way, Sacramento 25, Calif. Filed June 5, 1962, Ser. No. 206,159 1 Claim. (Cl. 74-1) This invention relates to an auxiliary cranking unit for internal combustion engines, and has as its primary object the provision of an apparatus for cranking an internal combustion engine during the application of cleaning fluid thereto.

An additional object of the invention is the provision of such a device which is mounted on a trailer or the like for easy portability.

A further object of the invention is the provision of an apparatus of this character which includes a means carried on the trailer for rotating the driving wheels of the vehicle while the clutch is engaged, in order that the motor may be cranked or actuated during application of the cleaning fluid.

A further object of the invention is the provision of an apparatus of this character which may, by the addition of a simple adapter, be readily applied to stationary engines of the internal combustion type which are not associated with wheeled vehicles.

A further object of the invention is the provision of a self contained portable apparatus of this character wherein the actuation of the wheel or pulley driving mechanism is accomplished by hydraulic means, thus eliminating the usual gears, sprockets, chains, belts, pulleys, idlers, etc. which are a recognized hazard to the operator of equipment of this character.

Still another object of the invention is the provision of a hydraulic drive for cranking the internal combustion engine, which achieves maximum efliciency from the power plant, a maximum amount of torque to the engine being driven, and maximum safety to the operator.

Still another object of the invention is the provision of an auxiliary cranking unit for cranking or actuating internal combustion engines during the introduction of cleaning fluid into the combustion chambers thereby effecting carbon removal from the combustion chambers, cleaning the valve guides, the rings and ring slots, and deglazing the cylinder walls.

A further object of the invention is the provision of a device of this character which is sturdy and durable in construction, reliable and efiicient in operation, and readily adaptable to use with any internal combustion engine.

Still other objects reside in the combinations of elements, arrangements of parts, and features of construction, all as will be more fully shown in the accompanying drawings wherein there is illustrated a preferred embodiment of this inventive concept, together with certain additional components employed in the full system.

In the drawings:

FIGURE 1 is a side elevational view of one form of cranking unit constructed in accordance with the instant invention, and shown as mounted on a trailer which also carries the wheel driving mechanism, the wheel driving mechanism also being shown in position for use in dotted lines.

FIGURE 2 is a top plan view of the unit of FIGURE 1, with the wheel driving assembly also being indicated as removed from the trailer and in position for use.

FIGURE 3 is a side elevational view of the apparatus of FIG. 1 as viewed from the opposite side, certain of the components being shown in a different position of adjustment, with the wheel driving unit being unloaded from the trailer.

3,148,549 Patented Sept. 15., 1964 FIGURE 4 is a sectional view taken substantially along the line 44 of FIGURE 1 as viewed in the direction indicated by the arrows, the wheel driving unit also being shown in dotted lines in position for use.

FIGURE 5 is a schematic view of the hydraulic system employed in driving the wheel revolving unit.

FIGURE 6 is a plan view of the wheel revolving unit showing its associated hydraulic pump.

FIGURE 7 is a side elevational view of the unit as shown in FIG. 6.

FIGURE 8 is a sectional view taken substantially along the line 8-8 of FIGURE 6 as viewed in the direction indicated by the arrows.

FIGURE 9 is a sectional view taken substantially along the line 9-9 of FIGURE 6 as viewed in the direction indicated by the arrows.

FIGURE 10 is a vertical sectional view taken substantially along the center line of a filter unit comprising an element of the hydraulic system of the instant invention.

FIGURE 11 is a sectional view taken substantially along the line 1111 of FIGURE 10.

FIGURE 12 is a perspective view of a supporting stand and container for cleaning fluid used in the system of the instant invention.

FIGURE 13 is a side elevational view of an adapter employed with the device of the instant invention for use with internal combustion engines in stationary position, or having no revolving wheels.

FIGURE 14 is an enlarged sectional view taken substantially along the line 14-14 of FIGURE 13; and

FIGURE 15 is an elevational view taken substantially along the line 15-15 of FIGURE 14 as viewed in the direction indicated by the arrows.

Similar reference characters refer to similar parts throughout the several views of the drawing.

Having reference now to the drawings in detail, the mobile unit comprising a portion of the instant invention is generally indicated at 20 and comprises a trailer unit which includes a frame comprised of a pair of oppositely disposed longitudinally extending tanks 21 and 21a, one of which, 21a, provides a gasoline tank for a gasoline engine, and the other of which, 21, comprises a reservoir for hydraulic fluid such as oil, for purposes to be more fully described hereinafter. Such tank serve as supports or frame members, and are connected by front and rear cross plates 22 and 23, respectively. Front cross plate 22 carries a forwardly extending tongue 24 centrally located, and reinforced by a pair of diagonally extending members 25 which extend from the outer end of tongue 24 to the opposite ends of plate 22. A conventional trailer hitch 26 is provided at the forward end of tongue 24, and serves as a means for attaching the trailer to a towing vehicle of any desired type.

Spring supporting lugs 27 depend from each of tanks 21, and carry leaf spring members 28, which support an axle 29 carrying at its opposite extremities trailer wheels 30.

A depending post 31 extends downwardly from tongue 24, and has pivotally secured thereto a wheel support 33 which is provided at its lower end with bifurcations 34 between which is mounted a caster wheel 35 on a pin or stub axle 36.

Fenders or splash guards 37 are mounted above each of wheels 30 on pins 38 secured to the sides of tanks 21. An auxiliary chain 39 is secured to the underside of tongue 24 beneath the trailer hitch 26 to provide additional securing means, if desired.

Cross supporting members 40 extending between the tops of parallel tanks 21 support an internal combustion engine generally indicated at 411, which includes the usual engine body 42, radiator 4-3, oil inlet 44, shift box 45, and shift lever 46. Power is supplied to the engine 41 from masses a a battery 47 which is mounted on one of diagonal members and a cross piece 48.

Rear plate 23 has secured to the rear or outer face thereof adjacent its opposite ends a pair of diagonally and upwardly extending bars 50 which are connected at their outer extremities by a cross plate or bar 51 which carries the usual tail lights 52. Also secured to rear plate 23 are oppositely disposed uprights 53 which serve as rear supports for a platform 54, front supports 55 also being provided and extending to and secured to the tanks 21. Cross members 56 and 57, respectively, connect uprights 53 and 55 to provide a stable support for the platform 54-.

The top of platform 54 is also provided with a pair of oppositely disposed angle irons 53, the purpose of which will be more fully described hereinafter.

A tubular socket 60 is secured to one of tanks 21 and rear plate 23, in any desired manner, as by welding, and carries an upright 61 which includes a right angularly disposed arm 63. A winch 64 provided with the usual ratchet 65 and pawl 66 is carried between plates 67 welded or otherwise secured to rotatable upright 61 and mounted on an axle 68 extending therebetween. Winch 64 carries a cable or rope 69 which extends upwardly over a pulley 70 mounted in a bracket 71 carried at the rounded juncture 72 betwen vertical member 61 and its horizontal extension 63, and thence over a pulley 73 which is mounted at the extremity of horizontal member 63. Cable or rope 69 extends downwardly to a ring coriconnection 74 from which extend diverging ropes or cables 75 which are detachably secured to a wheel rotating unit generally indicated at 30, and to be more fully described hereinafter. A crank 76 having a handle 77 is employed to rotate axle 68 and hence winch 64 when desired.

Wheel driving unit 80 is best shown in FIGURES 6 to 9, inclusive, and comprises a rectangular frame formed of longitudinally extending channel irons 81, connected at one end by a channel iron 82, and having their opposite ends beveled as at 83 to provide support for an inclined access plate 84. A plate extending transversely between channel irons 81 serves to support the upper end of plate 84 adjacent the upper surface of an idler roller 85 which is rotatably mounted on an axle 86, which eX- tends between oppositely disposed journal mountings 87 on channel members 81. Spaced from the idler roller 85 a substantial distance, and relatively closely adjacent the end channel iron 82 is a drive roller 38 which is mounted on an axle 39 which is carried by journals 90 supported on frame channel irons 81. Drive axle $9 is rotated by a hydraulic motor 91 which is fixedly secured to a plate 92 which is welded or otherwise secured to the adjacent frame member 81.

The arrangement is thus such that when one of the drive wheels W of a motor vehicle whose engine is to be cleaned, is rolled up ramp S4 and seated between rollers 85 and 88, energization of motor 91 in the manner hereinafter to be described, will rotate the wheel, also for a purpose to be more fully described hereinafter.

It may here be pointed out that in transporting the unit 80 the same is carried on the platform 54 and seated between the angle irons 58. When it is desired to use the apparatus for driving the drive wheels of a motor vehicle, the unit 80 is positioned on the ground by means of the winch 64 and cable 69 previously described, and picked up after use in the same manner.

Referring back to FIGURE 2, the drive shaft 94 of engine 41 actuates a hydraulic pump 95, which as best shown schematically in FIGURE 5, pumps hydraulic fluid through a line 96, a control valve 97, and a fluid inlet line 98 to the inlet 99 of wheel driving motor M. Fluid then passes through outlet ltitl of fluid or hydraulic motor 91 through a line 101 to hydraulic fluid storage tank 21. An outlet line 102 extends to a filter generally indicated at 103, from which a line 104 extends back to pump 95,

A suitable fill pipe 1% provided with a closure cap 106 permits the refilling of gasoline tank 210.

Control valve 97 may be of any desired conventional type for the control of hydraulic fluid under high pressure from pump 5.

Referring now to filter 163, it is pointed out that the filter is especially designed for use with hydraulic fluid, such as oil or other liquids propelled under high pressure utilizing a minimum of space, for transmission in a minimum time.

The filter is best shown in FIGURES 10 and 11 and comprises a tubular casing 109 having a threaded inlet 119 for atachment to inlet tube 1%2. Positioned interiorly of casing 109 is a conical screen filter 111 having. its apex pointed towards the inlet 119. A wire flange 112 is provided around the base of filter cone 111 and is clampingly engaged between neoprene sealing gaskets 113 which are carried between a flange 114 surrounding the top of casing 199 and the perimeter of a closure or lid 115 for the filter. The assembly is secured by means of nuts 116 carried by bolts 117.

An interiorly threaded outlet pipe 118 is provided in lid 115, it being noted that the outlet 11% is smaller than the inlet 11% to prevent sudden surges of oil or other hydraulic fluid from collapsing the cone 111.

FIGURE 12 discloses a support for engine cleaning fluid, and comprises a weighted base 124) from which a horizontal arm 12-1 extends, the arm 121 being upturned at 122 to a vertical portion 123. An arm 124 extends telescopically into upright portion 123 and is held in position by a set screw 125. Arm 124 terminates in a horizontally extending portion 126 having a hook 127 at its extremity which supports a clear plastic container or receptacle 128 which is provided with supporting wires 129 terminating in an eye 130 engageable over hook 127. Receptacle 123, may, and preferably is, provided with partitions 131, dividing the same into compartments, each of a size to hold, for example, a quart of engine cleaning fluid. Outlets or spigots 132 are provided for each compartment, each having an operating handle 133, and each being connected to a tubing 134 which is adapted to be connected in any desired manner to an engine inlet manifold, or other desired position in the engine.

This multiple outlet container is provided to assure proper distribution of cleaning fluid on engines with more than one intake port. On engines with more than three intake ports, a combination of containers may be used if necessary.

The cleaning fluid is fed into each cylinder simultaneously from the container and flows at a rate of about one quart per minute for engines up to 300 cubic inches. Engines of from 300 to 600 cubic inches take two quarts, and over 600 cubic inches, three quarts. The container is divided into sections to enable the operator to apply cleaner to a large engine using three quarts in approximately the same time that would be required for a smaller engine.

Any desired engine cleaning fluid may be used, but applicant has found that a cleaning fluid comprised of the following ingredients is exceptionally satisfactory for the purpose.

Deodorized kerosene Tri cresyl phosphate Chloroform Carbon tetra-chloride Acetone Isopropyl alcohol Coloring (trace) From the foregoing the use and operation of the device should now be readily understandable. When employing the instant invention in conjunction with diesel truck engines, the following procedure should be employed. The engine of the vehicle is first started and run until normal operating temperature is reached. The

wheel driving unit 80 is then positioned in front of the left side driving wheel and the truck is driven forward until the wheels are centered between the rolls on the unit. It is to be noted that idler roller 85 may be provided with any desired type of latching means to prevent rotation of the same until the wheel is in position. If it is desired to use the unit with a truck having a two-axle drive, a jack should be placed under the rear axle and raised slightly so that the tires can rotate freely. Blocks are then placed under the front and rear of the front wheels to help eliminate vibration in the event that the rear tires are out of round.

The compression release is then pulled and locked. It is to be noted that an engine not having a compression release two complete turns on the adjusting screws on intake valves will relieve compression. It may be pointed out that the cleaner should never be applied to a diesel engine without first relieving the compression as serious damage can be done by the engine starting and overspeeding.

The next step in the operation is to remove the air intake from the top of the intake manifold and with the transmission in direct drive and the truck clutch engaged, start rotation of the driving roller 88 by means of actuation of the engine 41 in the manner previously described. The engine cleaning material is then metered into the intake manifold while cranking the engine. After the application of cleaner is completed the engine should be cranked for an additional fifteen minutes or more to complete the cleaning action and to eliminate all fumes of the cleaner from the engine and then stop.

When the air intake is reconnected to the intake manifold, and the compression adjustments are reset, the engine may be started normally and is now ready for use. The procedure is substantially identical for gasoline truck engines except that the compression is not released.

Under conditions where it is desired to clean stationary power plants, marine and aircraft engines and engines in cars or trucks with automatic transmission where the engine cannot be turned over by applying power to the rear wheels, hydraulic motor 91 must be connected to the engine being cleaned by other means. FIGURES 13, 14, and 15 disclose an adapter which may be employed for this purpose. This adapter is generally indicated at 135 and comprises a U-shaped member having a bight 136 and oppositely disposed legs 137 and 138. A hinged connection 139 engages a suitable lug on motor 91, and an arm 140 extends at an angle from leg 138. A pair of clamping bolts 141 provided with flat clamping heads 142 extend through suitable openings in leg 138, and are adapted to be clamped to the frame F of an engine E to be cleaned, by rotation of handle members 143. An apertured lug 144 extends from the opposite side of motor 91 and is engaged by the end 145 of a belt tensioning bolt 146 which extends through a suitable opening in arm 140 and through a clamping nut 147. Bolt 146 is also provided with a rotatable handle 148. When it is desired to attach motor 91 directly to the fly wheel pulley P of a stationary engine, or other engine which is not associated with a wheeled vehicle, the U-shaped bracket is clamped to frame member F in such position that the pulley P is aligned with the pulley 91a of hydraulic motor 91. A V-belt 150 is then expected about the two pulleys, and the tension suitably adjusted by a rotating handle 148 which, through bolt 146, rotates the motor 91 about hinge 139. The appropriate hose connections are then made to the inlet 99 and outlet of pump 91 and the device is ready for operation.

When employing the adapter unit of FIGURES 13, 14, and 15, the procedure is to start the engine of a diesel type engine and run until normal operating temperature is reached. The fan and generator belts are then removed, and the bracket is attached to engine frame F, and the driving belt 150 connected between pulley 91a and pulley P. The transmission or clutch is then positioned in neutral position, and the compression release is pulled and locked. After this the operation is identical to that previously described in connection with diesel truck engines.

When handling auxiliary gasoline engines the procedure is identcal except that the compression is not released.

Now from the foregoing it will be seen that there is herein provided an improved auxiliary cranking unit which is readily adaptable to any type of internal combustion engine, either diesel or gasoline, and either in association with a motor vehicle, or stationary, or with marine or aircraft engines, which accomplishes all the objects of this invention, and others, including many advantages of great practical utility and commercial importance.

As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment hereinbefore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative, and not in a limiting sense.

I claim:

An internal combustion engine cleaning apparatus comprising a portable wheeled trailer, including a frame, a gasoline engine on said trailer, a hydraulic pump operable by said gasoline engine, a platform on said trailer adapted to carry a wheel driving unit, a wheel driving unit, means for connecting said wheel driving unit when removed from said platform to an engine to be cleaned, said wheel driving unit comprising a frame, a drive roller rotatably mounted in said frame, a parallel roller rotatably mounted in said frame, a hydraulic motor adapted to be connected to said drive roller, a hydraulic fluid reservoir on said trailer, elongated flexible tubing connecting said hydraulic pump to said hydraulic motor, additional elongated tubing connecting said motor to said reservoir and further flexible tubing connecting said reservoir to said pump, and a rotatable crane carried by said trailer for lifting said wheel driving unit on and ofl said platform.

References Cited in the file of this patent UNITED STATES PATENTS 1,099,161 Brown June 9, 1914 1,366,614 Walker Jan. 25, 1921 1,500,043 Asper July 1, 1924 1,753,176 Stevens Apr. 1, 1930 1,756,410 Wertz Apr. 29, 1930 2,170,786 McElroy Aug. 22, 1939 2,242,807 Austin May 20, 1941 2,352,356 Albertson June 27, 1944 2,490,921 Rousseau Dec. 13, 1949 2,761,529 Wisenbaugh Sept. 4, 1956 2,772,795 Cramer Dec. 4, 1956 2,798,622 Kelley July 9, 1957 2,961,829 Weisenbach Nov. 29, 1960 

